Photographic apparatus.



O. C. LAMB. PHOTOGRAPHIG APPARATUS. APPLICATION FILED DEC. 20, 1910.

Patented Aug. 20, 1912.

km J

G. G. LAMB.

PHOTOGRAPHIG APPARATUS. APPLIOATION FILED DEC. 20. 1910.

Patented Aug. 20, 1912.

4 BHBBTS-SHEET 2.

116 166 B M7n v,

C. C. LAMB.

PHOTOGRAPHIG APPARATUS.

APPLICATION TILED DEC. 20. 1910.

Patented Aug. 20, 1912.

4 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

CHARLES CALVERT LAMB, OF JOLIET, ILLINOIS, ASSIGNOR OF FORTY-NINF ONE- 7 HUNDREDTHS T0 WILLARD M. MCEWEN, OF CHICAGO, ILLINOIS;

PHOTOGRAPHIG APPARATUS.

Specification of Lettersratent.

I Patent-ed Aug. 2 0, 191-2.

Application filed December 20, 1910. Serial No. 598,371. 7

T 0 all whom it may concern:

' Be it known that I, CHARLES GALvna'r LAMB, a resident of Joliet, in the county of Will and State of Illinois, have invented certain new and useful Improvements in Photographic Apparatus, ofwhich the fol-- lowing is a full, clear, and precise specitication.

My invention relates to photographic apparatus, and particularly to improved construction and operation and arrangement of such apparatus which will better adapt it for photographic work, such as enlarging, reducing and copying.

Among the salient objects of my inventionare to provide improved construction for photographic mechanism supporting frames and improved adjustment mechanism there for which will enable such frames to be more readily and accurately adjusted longitudinally and transversely on. their supporting bed and vertically and rotatably on supporting uprights to provide an extensible supporting bed for receiving the various frames to thereby increase at will the field of longitudinal adjustability of the frames on the bed; to provide for making the various adjustments of the frames from the operators end of the supporting bed so that adjustment can be made from the operators end without the necessity of walking back and forth; to provide for improved relative arrangement, adjustment, and cooperation of the various photographic members or frames whereby work such as, reducing, en-

larging, copying, printing, etc., can be more readily and efliciently accomplished; to provide improved construction and arrange ment whereby proper artificial light results can be better obtained; to provide improved locking mechanism whereby the various photographic elements or frames can be more accurately adjusted and then locked inrlongitudinal position on the supporting bed; to so construct the various adjusting mechanisms that a greater range of a finer degree of adjustment can be obtained to insure proper centering, proper focusing, proper light, etc., which are necessary for the most efiicient photographic results; and in general to provide fbr improved construc tion, adjustment and operation of the apparatus for the purpose referred o.

In the accompanyin drawings the various constructions and arrangements are shown for carrying out the various features of my invention. I

In the drawings of various photographic elements assembled on a supporting bed, Fig.2 is a sideelevational view of the parts shown in Fig. 1,

Fig. 3 is an enlarged plan view of a section of the supporting bed and two of the elements mounted thereon, Fig. 4 is a rear elevational View of the parts shown in Fig. 3, Fig. 5 is a rear elevational view taken substantially from plane 5-5, Fig. 3 and showing the supporting base for the rear element, Fig. 6 is a side view of the parts shown in Fig. 5 looking from planes 3-45,

-Fig. 7 is a top view of the parts shown in Fig. 5, Fig. 8 is a sectional view taken on plane 88, Fig. 7, Fig. 9 is a rear eleva-' tiona'l View taken substantially from plane 9-:9, Fig. 3, showing the'supporting base i for the front element in Fig. 3, Fig. 10 is a sectional view of the parts shown in Fig. 9, looking from plane 10-10, Fig. 9, Fig. 11 is an enlarged view of an actuating rod section, Fig. 12 is a View taken from the left end of Fig. '11, Fig. 13 'is a view taken from the right end of Fig. 11, Fig. 14: is a diagrammatic view taken from plane 14-14 Fig. 1, showing the various elements of frames in relative arrangement for-enlarging from a negative, and Fig. 15 is a more or less diagrammatic View taken also from plane 14-44, Fig. 1, showing a modified relative arrangement of the elements for copying a picture.

Referring particularly to Figs. 1 and 2, a suitable stand or table 20 is provided for Figure 1 is a plan view supporting various bed frames 21, 2-2 and 23, each bed frame having sidebars 24 and 25 connected by end cross members 26 and 27, the outer faces of the side members adj acent their lower ends being provided with longitudinal grooves 28 and29 for receiving the guiding tongues 30 and 31 extending inwardly from the sides 20 and 20 of the supporting table, as best shown in Fig. 4:. The middle bed frame 21 has rigidly secured to the right ends of its side bars 24; and 25 the supporting base 32 for the element A, while the supporting base 33 for element B is provided at its ends with rollers, 34tand 35 for engaging the tracks 36 and 37 provided on the bars 24 and 25 of bed frame 21. The base 33 can therefore be adjusted longitudinally over the frame 1 element 13' and whichflike element B, serves 21 to carry element B toward or away from element A. As best shown in Figs. 14 and 15, the element A supportsa lens L, and- I the element B is adapted for receiving plate Y older mechanism ,38, the two elements bel ing connected by a bellows 39 and forming .an ordinary photographic camera outfit.

The bed frame 23 is applied to the table to accommo ate the enlarglng elementE whose construction is substantially like that of to suipporhplate holder mechanism 38. The

bed

ame 22 is (provided for supporting the elements C an D, these elements being I i used where reducing, enlarging or copying work is to be performed. The elements 13,0, D and E with their supporting bases are substantlally of identical construction, and their supporting bases are adapted for longitudinal and transverse, adjustment with reference to the supporting beds, and the elements are adapted for vertical adjust ment andfor horizontal and vertical swing about horizontal and vertical pivots, these a stated; the base 33 of each of the elements B,

(3,1) and E extends transversely across the corresponding supporting bed and is rectangular in form and mounted on rollers 34 and 35, these rollers being pivoted between brackets extending from the lower face of the base. Secured at front and rear sides of each base are the metallic strips 41 and 42 whose upper ends extend above the top surface of thebase and are inclined inwardly to 'formwith a block. a dove-tail channel 43 for receiving the intermediate block 44 of dove-tail shaped cross-section,

this block 44 being therefore longitudinally.

slidable over base 33 and transversely of the supporting bed. On this intermediate block is the top block or board 45- from whose center a pivot pin 46 extends downwardly into a pivot socket 47 in intermediate block 44 so that the top block or' board can swing in a horizontal plane with reference to the intermediate block. To guide thetop board and to hold it rigid when swung to an angle arcuate dove-tail extensions or tongues 48 and 49 are provided on the lower face of the board at opposite sides of its pivot pin, and these v tongues engage in correspondingly curved dove-tail slots 50 and 51 cut in the top face of the intermediate block. In order to effect swing of the top boards of the vari-" ous elements each top board has secured in its one end an arcuate gear rack 52 engaged i by a worm supported on a shaft 54 journaled in bearingibrackets 55 extending upwardly from theadjacent'end of the intermediate block, and the rearend of each shaft terminates in a knurled disk 56 by means of which rotation of the worms can be readily accomplished; Each of thef elements has a'main frame F for supporting photographic apparatus whose adjustment is to be accomplished. Extending from the exterior of the side walls of each frame are blocks 57 and 58 supporting pivot pins or trunnions'59 and 60, these trunnions being preferably midway between the, upper and lower ends of the framef Extcnding'upwardly from the opposite ends of "each topfree ends of the blankare not brought close I together but are leftapartaSutHcient distance to leave longitudinal passageways 65 and 66, and these slotsa're'opposedto each other when the standardsv are in place 011 the top board. Extending longitudinally through the respective standards are the threaded or spiral rods 67 and 68 journaled at their upper ends in caps 69 and 70 engaging the tops of the respective standards, and journaled at their lower ends in suitable openings 67 and 68" provided in the bases 63 and 64 and'in the top board. Within the standards 61 and 62 are the cylindrical blocks 71 and 72 receiving the shafts 67 and 68 and being in threaded engagement therewith so that rotation of'the shafts will cause longitudinal movement of the blocks within the standards. The blocks have extensions or tongues 7 3 and 74 respectively which extend outwardly through the guide slots 65 and 66 and which are a ertured toreceive the pivot, pins or trunn ons 59 and 60 respectively. The frames F are therefore adapted to be bodily raised or'lowered upon turning of the shafts and are adapted to be swung about a horizontal axis; In order that such swinging about the horizontal axis may be accomplished in any vertical position of the frames one of the threaded shafts, preferably shaft'68, has threaded "engagement with a .block 75 slidable within the standard 62 to be moved vertically synchronously with the blocks 71'and 72. This block 75 has a guide tongue 76 extending through 'slot 66, and expands at its outer end into a U-shaped horizontally disposed bracket 77 in whose ends is j ournaled a shaft 7 R mounting a worm 79, this worm meshing with a rack 80 secured at the lower end of the adjacent side wall of the frame F, the shaft carrying a knurled disk 81 whereby it may be readily rotated. For any vertical position of each frame F with reference to its supporting base mechanism the frame can be adjusted about a horizontal axis, and can be swung about a vertical axis upon actuation of worm 53 to rotate the top board 45. In order to accurately effect the bodily vertical adjustment of'the frame F of element B suitable crank controlled gear mechanism is provided for simultaneously rotating the screw shafts, and the gear mechanisms for the elements B, C, D and E are identical in operation and construction.

As shown in Figs. 3 and 4, shafts 67 and 68 mount at their lower ends the bevel gears 82 and 83 meshing respectively with bevel gears 84 and 85 at opposite ends of a cross shaft 86 journaled in brackets 87 and 88 extending upwardly from the top board 45. At an intermediate point the shaft carries a bevel gear 89 meshing with a bevel gear 90 mounted on crankshaft 91 journaled in a bearing 92 extending upwardly from the top board, this shaft terminating in a crank handle 93.

Upon rotation of the crank shaft by means,

of its crank handle the screw shafts Will be rotated slmult-aneously in the proper direction to cause simultaneous up or down move- .ment of the blocks 71 and '72 within the standards to thus raise or lower the frame F.

As shown best in Figs. 5 to 8, each base 33 has along its central part a longitudinal slot 9 1, and through and beyond this slot a lug 95 extends downwardly from the intermediate board 44, the longitudinal movement of the intermediate board on the base being limited to the length of the slot. De-

I pending from each base just within the roller supporting brackets 40 are bearing brackets 96 in which the ends of a screw shaft 97 are journaled, this screw shaft passing throu h and having threaded engagement with t e lug 95 so. that turning of the shaft will cause longitudinal movement of the intermediate block on the base. right end 97 of the shaft extends outwardly beyond the bar 25 of the bed frame and terminates in a bevel gear 98. This bevel gear meshes with a bevel gear 99 mounted on a polygonalshaft 100 to be constrained to rotate with said shaft but to be free to slide thereon, the gear being fixed with reference to the base 38 by being confined between brackets 101 and 102 extending downwardly from said base and through which the polygonal shaft may slide and in which it may rotate. This shaft is further supported and journaled in a rear bearing 103 extending from the side of bed frame21 and in a front bearing 1G4 extending laterally from the scribed in more detail later.

The reduced tationof the screw shaft being transmitted to the lug 95 extending from the intermediate block, this intermediate block will be shifted longitudinally on the base. The adjustment of the basesof the elements B, C, D. and E is accomplished by moving the bases on the rollers along the tracks of the bed frames. Thus by longitudinally shifting the base of any of the elements B, C, D

and E all the mechanisms on said base will be bodily moved correspondingly. By effecting rotation of the screw shaft 97 of any one of these frames theintermediate block and all the mechanisms thereon will be shifted transversely of the bed plates. By turning the worms 53 the corresponding top boards and all mechanism thereon will be swung about a vertical. axis. By turning cranks 93 the corresponding vertical screw shafts will be rotated and the supporting frame F adjusted bodily vertically, and by turning worms 79 the corresponding frame F will be swung about a vertical axis, each of the elements having, therefore, five distinct adjustments which can be used singly or in desired combinations.

For ordinary photographic work only the bed frame 21 is applied to the stand 20 and receives the elements A and B, the frame F of element A supporting lens mechanism L, and the frame F of element B supportmg plate holder mechanism, the two frames being connected by the bellows 39. For ordinary photographing but where larger plates are to be used the bed frame 23 is applied to .support the enlarging element E, and where special work, such as enlarging, reducing or copying is to be performed, the bed frame 22 1s a plied to support the elements O and D, the various elements being adapted for interconnection, as will be de- As already stated, elements B, C, D and E, as far as adjustment is concerned, are identical, each having five adjustments, but element A has only three, namely transverse bodily adjustment across its rigid base, vertical bodily ad- 'justment of its frame F, and swing of frame F about its horizontal axis. The worm and rack mechanism for controlling the swing of the frame and the horizontal axis is the same as that for'the other elements, and likewise the supporting standard and screw shaft mechanism for controlling the bodily vertical adjustment of the frame is the same as that of the other elements The mechanism for controlling the screw shafts is, however, of slightly modified construction.

Referring to Figs. 1, 2,v 3, 9 and 10, the base 32 is rigidly secured to the side bars 24 and 25 of bed frame 21 and has the dovetail groove 105 receiving the board 106. The standards 61 and 62 are mounted directly on board 106 and each has screw shaft'mechanism connected with frame F in the same frame 21, the rear end "of this shaft. section manner as in the other elements, the bevelgears 82 and'83 at the lower'ends of these screw shafts meshing with gear-s81- and 8 5, and these last mentioned gears being mounted ona polygonalshaft 107 mounted at its, ends in bearings 108 and 109 secured to board 106. A hearing bracket 110 secured to and extending upwardly-from the board from the base 32 journals a sleeve 111 which has a polygonal opening for receiving the shaft107 so that said shafh-mayslide. therethrough- Keyed to the 'slee'vle is ilihfiv fil gear 112 which meshes with a I gear .11 13 mounted at the; front end of shaft'l'l l joilrnaledjat a vertical shaft 118 whichfi journals at its upper end in lug 119 on' bearing frame 116- and which journalsjatjitsj 'lower-endin the 107, the rear end being squared for receiving the crankhandle. Shaft section 129 on lower end of the U-shaped'eittension 120 depending from bracket frame 115.

on shaft 123 journaled in the'bearing exten- 124-mounted on the rear, crossbar of bed being squared to receive a crank'handle 125. The screw shaft 97 forthiselement receives the lug 95 extending from board 106, but this shaft insteadof being journaled in special. brackets, as is the case in the other elements, is journaled directly in the side bars24= and 25 of bed frame 21, the left end of the shaft carrying a bevel pinion 127 which meshes with a bevel gear 128 mounted at the front end of shaft section 129, journal'ed in'bearing frames 130 and 131 extending from the side bar 24, the rear end of thisshaft being squared, as best shown in Fig. 3,.for receiving'a crank handle. Thus, when elements A and B are used alone in the ordinary photographic capacity all the adjustments of the element B can be made'from" the operators end of bed frame21, and likewise the more important adjustments of element A,

namely the transverse adjustment and the vertical adjustment, can be-performed from the operators end of bed frame'21, the ends .of the various controlling shafts being squared to receive crank handles. When the additional elements E, C and D are used in conjunction with the elements A and B it is desirable to control as much as possible the adjustments'from the operators end, and each bed frame is provided with shaft sections, and the ends of the shaft sections of ,the' bed frames are adapted to be coupled together when the bed frames are applied to the stand.

The contruction of the shaft sections is v This shaft at its lower end mounts also abevel gear 121 which meshes with a bevel gear 122 best shown Figs.11, .12 and 13. Each shaft sectionghas a squared rear end 132' provided with a" transverse slot' 133 in its end, and the opposite end of each shaft section has a tongue 134 for engagingin the groove 133 of the adjacent sectlon to thus couple the sections together. 'When parts A and .B are used alone the squared ends 132 of the various shafts receive cranks and are thereby directly actuated. As shown in Figs. 1 and 2, the frames 21, 22 and 23 are all-appliedto the stand 20. The shaft section. 100 controlling the transverse "shifting of element B couples at a, with the front end of shaft'section 135journaled in brackets 106,

107 extending from bed frame 23, the rear :fendof this shaft section'being squared at .132 to receive a crank handle. Shaft section 136' receives the pinion 99 controlling the lateral shift .of the element E and is.

bed frame 21 is coupled at b to the shaft section 137 journaled in brackets 138 and 139 on bed fraane 23,this shaft section havr ingthe squared rear end 132. Shaft section 140 vreceiving the pinion 99 for controlling the shifting of element G is journaled in to the shaft section 144 'journa-led in hearing sections 138 and 139 on bed frame 23. Likewise the shaft section 1 15 carrying the pinion 99 for controlling the transverse shift or element E iscoupled at- 'e to shaft section 146, which in turn is coupledat f to shaft section 147, whose rear end is squared. Therefore, upon application of the bed frames 22 and 23 to the supporting stand the ends of the shaft sections thereon will couple with the shaft sections on bed frame 21 so that the transverse shifting of the elebrackets .141 and 14.2 extending from bed .frame 22 and is coupled atC to shaft'section'143 journaled in bearing frames-130, and 131 on bed frame 21 and coupled at D ments can all be controlled from the operators end of the outfit. 'Shaft section 123 "connecting with the mechanism for cont-rolling the vertical adjustmefit of element A will assume coupling engagement at g with. the shaft section 148 journaledon bed frame 2 3 to be received at lts rear end b a. crank handle. Thus the transverse shiftlng of all the elements and-the vertical shifting of the lens supporting element can be' all controlled from the operators end, and the other adjustments at the elements themselves, although the same extension arrangement could be applied to the various controlling shafts of these adjustments so that these adjustments could also be made from a common point at the operatorsend.

. As before stated, the longitudinal adjustment of the elements B, C, D and E iseffected manually by rolling the bases along the track bars of the bed frames. However, provision is made for effecting accurate and final adjustment of each element. As shown in Fig. 1, each of these'elements has associated therewith a locking board 149, and the de-' tails of this board and the locking mecha- I to its supporting nisms thereon are best shown in Figs. 3' and 4. The board consists of upper and lower walls 150 and 151 connecting between side bars 152 and 153, these side bars having grooves 154 and 155 for receiving tongues 156 and' 157 respectively on looking rails 158 and 159 secured to the inner sides of the side bars 24 and 25 of the bed frames, the boards being, therefore adapted to be slid alongthese rails longitudinally of the bed frames. On each board 149 is pivoted at 1.60 an adjusting cam plate 161 having the cam slot 162 eccentric with reference to the pivot center and having an operating handle 163. The cam .slot receives the lower end of a pin 164 extending downwardly from the base 33 of the associated element. Each board is therefore coupled to its associated element,

and sliding of the board will carry with it the element, and when the board is shifted to effect a preliminary longitudinal adjustment of the element it is locked to the bed frame and then the final longitudinal adjustment of the element made by means of adjusting plate 161 the cam groove 162 upon rotation of the plate acting on the pin 164 to gradually bring the element into the desired position. I also provide improved means for automatically locking each board bed. Mounted on the lower wall 151 of each board are slide bearings 165 and 166 receiving the inner ends of rods 167 and 168 whose outer ends have sliding engagement in the end bars 152 and 153 of the board to cooperate with the looking notches or pockets 169 in the tongues of the locking rails. The rods 167 and 168 terminate at their inner ends in heads 170 I and 171 each having a passageway 172 for receiving the V or wedge-shaped ends 173 and 174 of the plate 175. A spring 176 interposed between the inner ends of the heads 170 and 17 1 tends to force the heads outwardly to carry the ends of the rods into the notches of the locking rails to thereby securely lock the board to the rails. The late longitudinally the head 178 is pushed inwardly to cause the plate 17 5 to release the rods from the looking rails, and the board can then be pushed or pulled to carry with it the attached element for preliminary adjustment, whereafter the locking plate is released to allow the rods to lock the board to the locking rails, and adjusting plate 161 is then actuated to effect final adjustment of the element.

In Figs. '14 and 15 the detail constructions of the frames F of the various elements are illustrated and also different arrangements of the elements for carrying out different photographic operations. As best shown in Fig. 4, each frame has four walls 181, 182, 183 and 184. In elements E and B these walls adjacent their rear edge have grooves 185 for receiving the tongues 186 on the four sides of the plate holder 38 or a bellows head 187. The frame of elements C anctD have likewise grooves 185 for receiving frames of various kinds provided with tongues 186,

while the walls of the frame of element A I adjacent their front edges are grooved to. re-

ceive the lens board 188. The bellows 39 is" secured to the rear and front ends of the frames of elements A and B respectively. The bellows 189 is connected withthe frame of element E and with the frame 187. Bellows 190 connect with the lens board 188 and with the frame 191, and bellows 192 connect between the frames of elements G and D respectively. The frame of element G has additional grooves 193 for receiving is,

tongued negative supporting frame 194. In

the frame of element D illuminating means, such as electric lamps 195, areisecured to the frame walls, and the walls of bellows 192 converge toward the end connected with the element C so that the light from the lamps is converged and properly diffused. Re fleetors 196 can also be provided for the lamps to assist in properly throwing the light. As best shown in Fig. 4, a section 197 of a wall of each frame is hinged at 198 to form a door for permitting the insertion of various frames into the grooves of the frame, and after such insertion the doors are closed and the frames securely locked in place, and the frames F sealed against the entrance of light. As shown in Fig. 1, the door for the sect-ion A is formed in the top wall of its frame, and the doors for the other elements are provided in a side wall of the frames.

In Fig. 14 an arrangement of the elements is shown for performing enlarging from a negative. In element C a negative plate 199 is mounted on a kit 200 supported in frame 194, and the various elements, and particularly the lens element A, are adjusted by the mechanism hereinbefore described to give the desired size of print with the plate 201 supported on the plate holder 38 1n enlarging element E. As is well understood,

the size of the-print can be adjusted by;

shifting'the element E or by shifting the lens element- A. The converging bellows element and the element C. The object O to be enlarged is tacked to the board 202 now inserted in the grooves ofthe frame ofelement 0, and the light from the lamps-is converged by the bellows 192 and concentrated on the object. The plate holder 38 in this arrangement is inserted in element B, and this element and the'lens element adjusted to give the desired size of print on the plate 201. If a larger print weredesired the plate termediate board to be adapted tobe swung holder would be-inserted in enlarging element E and the head 187 of this element insorted in element B, as in Fig. it. In place of the plate holder in Fig. 1& aprinting frame could be "inserted containing photographic paper on which a print could be made from the negative 199. Also, instead of using Ordinary plate holders the focusing and plate holder attachment could most efiiciently be used, which attachment l have A nation of a supporting base, a pair of vert-ical screw shafts journaled on said base, supporting blocks having threaded engage- ;ment with said screw shafts, a photographic disclosed and claimed in my co-pending application executed of even date herewith;

By inserting the element D in Fig, 14 in.

a suitable day-light aperture, day-light I could be usedinstead of the light from-the lamps, the converging bellows 192 servingv in both cases to concentrate theillumination i i and to bring itto a difiused state, thus to illuminate the negative evenly at all parts without the use of condenserlens or ground glass, as is necessary inother systems. By means of the various adjusting mechanisms described the elements can be adjusted in their various directions to enable the operator to avoid distortion and to obtain clearcut results. The various blocks 71an'd 72 which support the frames h for vertical ad-' justment could beprovided with pointers 203 for indicating the adjustment on :s'cale marks 204 on the supportingstandards-61" and 62, andlikewise pointersv 205 could be provided on the movable basesvof the elements to indicate" focal or'other adjustments of the elements on a scale 206 provided on the table 20. A level 207 could also' be provided on each frame F to indicate its proper it do not desire to be limited to the precise construct-ions, operations and arrangements j which I have shownand described, as

changes and modifications are possible which would st-ill come within the scope of my inyention, and it therefore claim the'follow- 1n nation of a supporting bed, a supporting g 1. In photographic apparatus, the c'ombibase mounted on said bed and adapted to be adjusted longitudinally thereon, a supporting board mounted on said base, means for adapting said board to be shifted longitudinally along. said base transversely ofsaid supporting bed, pivot members supported from said board, a frame mounted on said adjusted longitudinally thereon, an intermediate board mounted on said base and adapted to be shifted longitudinally-on said base transversely of said bed, a top board pivoted at an intermediate point to said inhorizontally, supporting uprights mounted at the ends of said top board, pivot members on said uprights, a frame pivoted to said pivot members to be adapted to swing" about ahorizontal axis, and means for raislng and lowering said ivot members to thereby efiect bodily vertical adjustment of said frame.

3. In photographic apparatus, the combivertical; bodily adjustment of said blocks and the frame supported thereby.

4. In photographic apparatus, the combi-' "nation of a supporting base, tubular stand-v ards mounted on said base, a vertical screw shaft mounted in each standard, a blockin each standard having threaded engagement with the screw shaft, each standard having a vertical slot through which said block proejects, :a' photographic frame pivoted at" its sides to the projecting" ends of said blocks to be swungabouta horizontal axis, means for controlling the rotation of'said .screw shafts to etlect simultaneous" vertical adjustment of saidiblocks and of the frame fcarried; thereby, gear teeth on said frame, a gear member engaging said teeth, and a block having threaded engagement with one of said screw shafts and supporting said gear member.

, 5. In photographic apparatus, the combination of a supporting base, vertical screw shafts mounted on said base, a block engaging each screw shaft, aphotographic frame pivoted at its sides to said blocks to be rod adapted to swing about a horizontal axis, a

gear rack on said frame, a second block on one of sa d screw shafts, a worm wheel ournaled on said second block and meshing with said gear rack, said second block traveling in synchronism with the first block upon rotation of the supporting screw shaft, and means for simultaneously rotating said .screw shafts to effect vertical bodily adjustment of the frame supported on said blocks.

6. In photographic apparatus, the combination of a supporting bed, a base extending transversely of said bed and mounted thereon to be shifted longitudinally of said bed, said base having longitudinal guideways, a board mounted in said guideways and shiftable longitudinally on said base, means carried by said base for effecting such longitudinal shifting of said block, a top board pivoted at an intermediate point to said board and having horizontal swing about said pivot, means on said block for efiecting shifting of said block, a tap board pivoted atan intermediate point to said board andhaving horizontal swing about said pivot, means on said block for effecting swing of said board, screw shafts mounted on said board, blocks having threaded engagement in said screw shafts, a photograhpic frame carried by said blocks to be bodily adjusted vertically upon rotation of said screw shafts, and means on said board for effecting rotation of said screw shafts.

8. In photographic apparatus, the combi' nation of a supporting bed, a base extending transversely of said bed and mounted thereon tobe shifted longitudinally of said bed, said base having longitudinal guideways, a board mounted in said guideways and shiftable longitudinally on said base, means carried by said base for effecting such longitudinal shifting of said block, a top board pivoted at anrintermediate point to said board and having horizontal swing about said pivot, means on said block for effecting swing of said board, screw shafts mounted on said board, blocks having threaded engagement in said screw shafts, a photographic frame trunnioned to said blocks at its sides to be swung about a horizontal axis and to be bodily vertically adjusted upon rotation of said screw shafts, and means mounted on said board for controlling the rotation of said screw shafts.

9.In photographic apparatus, the combination of a supporting bed, a base extending transversely ofsaid bed and mounted thereon tobe shifted longitudinally of said bed,

said base having longitudinal guideways, a board mounted in said guideways and shiftable longitudinally on said base, means carried by said base for effecting such longitudinal shifting of said block, a top board pivoted at an intermediate point to said board and having horizontalswing about said pivot, means on said block for effecting swing of said board, screw shafts mounted on said board, blocks having threaded engagement in said screw shafts, a photographic frame trunnioned to said blocks at its sides to be swung about a horizontal axis and to be bodily vertically adjusted upon rotation of said screw shafts, means mounted on said board for controlling the rotation of said screw shafts, and means mounted on one of said screw shafts for controlling the swing of said frame about its horizontal 10. In photographic apparatus, the combination of a supporting bed, a' photographic supporting framework mounted on said bed to be shifted longitudinally thereon, a locking board shiftable longitudinally on saidbed, coupling mechanism connecting said board with said framework, and means for locking said board in adjusted position on said bed, said coupling mechanism being adjustable whereby to eflect adjustment of said framework on said bed after said board has been locked to said bed.

11. In photographic apparatus, the combination of a supporting bed, photographic supporting framework mounted on said bed to be longitudinally shiftable thereon, a locking board shiftable longitudinally on said bed, a pin extending from said'frame work, a cam plate pivoted to said board and having a cam slot for receiving said pin, means for locking said board in any adjusted position on said bed, and means for effecting rotation of said cam plate to there-v by cause adjustment of said framework longitudinally on said bed after said board has been locked to the bed.

12. In photographic apparatus, the com bination of a supporting bed, a supporting base mounted on said bed to be shiftable longitudinally thereon, photographic apparatus mounted on said base, a locking board adjacent said base and shiftable longitudinally on said bed, adjustable coupling mechanism connecting said base with said board, and means for rigidly locking said board to said bed after adjustment thereof.

13. In combination with the plate holder supporting frame, the'lens board supporting frame, and the bellows of a camera, of an illuminating frame having illuminating units therein, an object supporting frame frame and object supporting frame having longitudinal adjustment on said supporting" bed, and each of said frames being adjustable transversely on said bed.

14. In combination with the plate holder supporting frame, the lens board support? ing frame, and the bellows of a camera, of an illuminating frame having illuminating units therein, an'objeotsupporting frame for supporting an object to be illuminated, and a supporting bed for said frames, said plate holder frame and said illuminating frame and object supporting frame being each adjustable longitudinally and transf versely onsaid supporting bed, means for efieot-ing bodily vertical adjustment of each 15. In combination with a camera com- 1910. of said frames, means for adjusting each of said frames about 'a horizontal axis, and; means for adjusting each of said framesabout a vertical'axis. l 2'3- prising plate liolder supporting frame and a lens board supporting frame, of an illuminating frame having illuminating units,

a convergent bellows extending from said illuminating frame, and an object supporting frame connected With the convergent end of said bellows and adapted for connection with said lens board supporting frame, said convergent bellows serving to difiuse and concentrate the light -from said illuminatingunits to an obj eqt supported by I said object supporting frame.

In Witness whereof, l hereunto subscribe my name this 12th day ofDecember, A. -D.,

qfoniinnns oALvnn-r LAMB. llfitnesses:

lrlnniar SIMS, D. G. McNAMAnA. 

